Limiting type crankshaft cleaning device

Abstract

The utility model discloses a limiting type crankshaft cleaning device, and belongs to the technical field of mechanical equipment of engine crankshafts. The device comprises a transportation system, a supporting system, a limiting system and a cleaning system. The conveying system is composed of a conveying trolley, a rail and a mechanical arm. Angular positioning and crankshaft V-shaped supporting are adopted in the supporting system. The limiting system comprises an air cylinder limiting device, a feeding / discharging limiting device and a cleaning limiting device, the feeding / discharging limiting device and the cleaning limiting device are both designed through parallel double adjustable bolts, and the stability and safety of the structure are improved. The cleaning system is composed of a cleaning pipeline and a cleaning nozzle, and efficient cleaning of the crankshaft oil duct hole is achieved. According to the crankshaft cleaning device, through the synergistic effect of the mechanical arm and the limiting system, precise positioning and stable clamping of a crankshaft are achieved, the cleanliness of a crankshaft oil duct hole is remarkably improved through efficient cleaning, the machining quality of a finished product is improved, and the crankshaft cleaning device is suitable for the cleaning requirements of various crankshafts.

Description

Technical Field

[0001] This utility model relates to a limiting crankshaft cleaning device, which belongs to the field of mechanical equipment technology for engine crankshafts. Background Technology

[0002] As a core component of the engine, the crankshaft's built-in oil passages play a crucial role in guiding lubricating oil to key lubrication points within the engine, ensuring stable operation and optimal performance. However, in the current crankshaft manufacturing cleaning process, a series of challenges urgently need to be addressed to improve production quality and efficiency, specifically:

[0003] Inside the cleaning machine, crankshafts at the loading / unloading stations are transported to the cleaning station via a transport trolley. Even slight displacement of the crankshaft during transport can cause the fixed nozzles in the cleaning station to be difficult to precisely align with the crankshaft oil passage holes, thus affecting the effectiveness of high-pressure flushing. This makes it difficult to achieve the desired cleanliness of the oil passage holes, posing a potential threat to the engine's subsequent performance and lifespan.

[0004] After more than a decade of continuous operation, the positioning system of the transport trolley inside the cleaning machine has lost its original high-precision control capabilities, resulting in decreased positioning accuracy and difficulty in achieving millimeter-level precision. This not only severely affects the cleaning effect of the crankshaft oil passage holes, but also, during the trolley's return to the loading / unloading station after the cleaning process, the positioning error causes frequent collisions between the robotic arm grippers and the crankshaft workpiece, resulting in scratches and dents on the workpiece surface, seriously affecting the processing quality of the finished product. Utility Model Content

[0005] The purpose of this invention is to provide a limiting crankshaft cleaning device to solve the problems of inaccurate positioning and workpiece damage in existing cleaning devices, ensure the stability and reliability of the cleaning process, reduce maintenance costs and downtime, improve the efficiency and quality of crankshaft cleaning, and provide a more efficient and reliable cleaning solution for the engine manufacturing industry.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a limiting crankshaft cleaning device, which includes a robotic arm, a transport system, a support system, a limiting system, and a cleaning system;

[0007] In the transportation system, the top of the transport trolley is fixedly connected to the base plate;

[0008] In the support system, the support frame is welded to the base plate, and the two ends of the support frame are respectively provided with crankshaft four main shaft V-shaped support and crankshaft one main shaft V-shaped support;

[0009] The limiting system includes a cylinder limit, a loading / unloading limit, and a cleaning limit. The loading / unloading limit is used to limit the transport trolley during loading / unloading, and the cleaning limit is used to limit the transport trolley during cleaning.

[0010] The cylinder is limited by mounting the cylinder on a fixed plate, which is vertically mounted on the base plate; the outer end of the piston rod in the cylinder is connected to a clamping block, which clamps the crankshaft to the side wall of the support frame under the drive of the piston rod.

[0011] In the loading / unloading limit, the end of the loading / unloading limit bracket is provided with an adjustable loading / unloading bolt; in the cleaning limit, the end of the H-shaped bracket is provided with an adjustable cleaning bolt.

[0012] The cleaning system includes an upper cleaning nozzle and a lower cleaning nozzle installed on the cleaning pipeline.

[0013] The upper cleaning nozzle is aligned with the upper crankshaft oil passage hole, and the lower cleaning nozzle is aligned with the lower crankshaft oil passage hole.

[0014] One end of the support frame is also provided with crankshaft angular positioning.

[0015] The robotic arm is mounted above the support frame and is used to grab or place the crankshaft from the transport trolley before and after cleaning.

[0016] In the cylinder limiting mechanism, a buffer mechanism is provided between the piston rod and the clamping block to reduce the impact when the clamping block opens and closes.

[0017] The loading / unloading limit is provided with at least two loading / unloading adjustable bolts; the cleaning limit is provided with at least two cleaning adjustable bolts.

[0018] The adjustable cleaning bolt allows for manual adjustment of the length extending from the H-shaped bracket, enabling cleaning of crankshafts of different sizes.

[0019] The beneficial effects of this utility model are:

[0020] 1. By adding a telescopic cylinder to the transport trolley, axial positioning of the crankshaft is achieved. This effectively prevents the crankshaft from shifting during trolley transport and high-pressure flushing, thus ensuring that the nozzle can always be accurately aligned with the crankshaft oil passage holes, significantly improving the cleanliness of the oil passage holes.

[0021] 2. Adjustable axial limit switches enable precise control of the trolley's axial movement. Operators can precisely set the trolley's movement range by adjusting bolts according to actual needs, effectively preventing collisions and damage caused by positioning errors during transportation. This not only enhances system stability but also significantly improves operational safety and reduces potential accident risks.

[0022] 3. The design of the telescopic cylinder and adjustable axial limit makes the entire cleaning process more efficient and flexible. Operators can quickly adjust the positioning of the trolley to adapt to the cleaning needs of crankshafts of different sizes and specifications.

[0023] 4. Due to the improved positioning accuracy of the transport trolley, especially the precise positioning when returning to the loading / unloading station, the robotic arm can accurately grasp the workpiece, avoiding workpiece damage caused by positioning errors. This improvement not only reduces workpiece scrap but also significantly improves the processing quality and overall performance of the finished product, providing the engine manufacturing industry with higher-quality crankshaft components. Attached Figure Description

[0024] Figure 1 This is a front view of the loading / unloading station of a limiting crankshaft cleaning device.

[0025] Figure 2 This is a top view of the loading / unloading limit of a limiting crankshaft cleaning device.

[0026] Figure 3 This is a top view of the cleaning station of a limiting crankshaft cleaning device.

[0027] Figure 4 This is an angular positioning side view of a limiting crankshaft cleaning device.

[0028] In the diagram: 1. Transport trolley, 2. Robotic arm, 3. Base plate, 4. Crankshaft, 5. Support frame, 6. Crankshaft angular positioning, 7. Crankshaft four-spindle V-shaped support, 8. Crankshaft one-spindle V-shaped support, 9. Cylinder limit, 10. Loading / unloading limit, 11. Cleaning limit, 12. Fixing plate, 13. Cylinder, 14. Piston rod, 15. Clamping lock block, 16. Loading / unloading limit bracket, 17. Loading / unloading adjustable bolt, 17a. Cleaning adjustable bolt, 18. H-type bracket, 19. Cleaning pipeline, 20. Upper cleaning nozzle, 21. Lower cleaning nozzle, 22. Crankshaft oil passage hole. Detailed Implementation

[0029] A limiting crankshaft cleaning device includes a transport system, a support system, a limiting system, and a cleaning system.

[0030] The transportation system includes a transport trolley 1 and a robotic arm 2. The top of the transport trolley 1 is fixed together with the base plate 3. The robotic arm 2 is mounted on the top of the device and is used to grab or place the crankshaft 4 from the transport trolley 1 before and after cleaning.

[0031] The support system includes a support frame 5, a crankshaft angular positioning 6, a crankshaft four-major V-shaped support 7, and a crankshaft one-major V-shaped support 8, which are connected to the support frame 5. The support frame 5 is welded to the base plate 3.

[0032] The limiting system includes a cylinder limiter 9, a loading / unloading limiter 10, and a cleaning limiter 11. The cylinder limiter is mounted on a fixed plate 12, which is vertically mounted on a base plate 3 to support the cylinder components. The cylinder limiter includes a cylinder 13, a piston rod 14, and a clamping block 15. One end of the piston rod 14 is connected to the cylinder 13, and the other end is connected to the clamping block 15 to drive the opening and closing of the clamping block 15. Under the drive of the piston rod 14, the clamping block 15 securely clamps the crankshaft 4. On the transport trolley 1, the loading / unloading limit includes a loading / unloading limit bracket 16 and a loading / unloading adjustable bolt 17 located at the front end of the bracket. The loading / unloading adjustable bolt 17 can be rotated to adjust its extension length, thereby achieving precise limiting of the initial loading / unloading position of the transport trolley 1. The cleaning limit includes an H-shaped bracket 18 and a cleaning adjustable bolt 17a located at the head of the bracket. The cleaning adjustable bolt 17a can be rotated to adjust its extension length, thereby limiting the axial movement of the transport trolley 1 at the cleaning station.

[0033] The cleaning system includes a cleaning pipeline 19, an upper cleaning nozzle 20, and a lower cleaning nozzle 21. The cleaning pipeline 19 is installed near the crankshaft 4 to be tested. The upper cleaning nozzle 20 and the lower cleaning nozzle 21 are installed on the cleaning pipeline 19, and their distribution is consistent with the direction of the oil passage hole 22 of the crankshaft.

[0034] A buffer mechanism is provided between the piston rod 14 of the cylinder limit and the clamp locking block 15 to reduce the impact when the clamp locking block 15 is opened and closed.

[0035] Both the loading / unloading limit and the cleaning limit adopt a parallel double bolt design to reduce the deformation and displacement of the limit structure under stress, and ensure the stability and safety of the structure.

[0036] The extension length of the adjustable bolt 17a can be adjusted manually to accommodate crankshafts of different sizes and different cleaning needs.

[0037] Specific examples Figures 1 to 4 As shown, this utility model relates to a limiting crankshaft cleaning device, which has a compact structure and can achieve efficient and precise cleaning of the crankshaft. The shape and structure of this utility model will be described in detail below with reference to the accompanying drawings.

[0038] The limiting crankshaft cleaning device mainly consists of four parts: a transport system, a support system, a limiting system, and a cleaning system. These parts work together to complete the task of cleaning the crankshaft.

[0039] The transport system consists of a transport trolley 1 and a robotic arm 2. The transport trolley 1 can move left and right along a track. The top of the transport trolley 1 is fixed to the base plate 3, forming a stable support platform. The robotic arm 2 is mounted above the device and is used to grab or place crankshaft 4 from the transport trolley 1 before and after cleaning. This design makes the loading and unloading process of crankshaft 4 more automated and efficient.

[0040] The support system includes a support frame 5, a crankshaft angular positioning element 6, a crankshaft fourth main shaft V-shaped support 7, and a crankshaft first main shaft V-shaped support 8. These components are connected to the support frame 5, forming a stable support system. The support frame 5 is welded to the base plate 3, ensuring the stability and reliability of the entire support system. The crankshaft angular positioning element 6 is used to determine the angular position of crankshaft fourth, while the V-shaped supports 7 and 8 are used to support the main shaft portion of crankshaft fourth, preventing displacement during cleaning.

[0041] The limiting system is a key part of this utility model, and it includes a cylinder limiter 9, a loading / unloading limiter 10, and a cleaning limiter 11. The cylinder limiter 9 is mounted on a fixed plate 12, which is vertically mounted on a base plate 3. The cylinder limiter 9 includes a cylinder 13, a piston rod 14, and a clamping block 15. One end of the piston rod 14 is connected to the cylinder 13, and the other end is connected to the clamping block 15. When the cylinder 13 is activated, the piston rod 14 drives the clamping block 15 to open and close, thereby firmly clamping the crankshaft onto the transport trolley 1.

[0042] The loading / unloading limit 10 includes a loading / unloading limit bracket 16 and an adjustable bolt 17 located at the front end of the bracket. The adjustable bolt 17 can be rotated to adjust its extension length, thereby achieving precise limiting of the initial loading / unloading position of the transport trolley 1. This design ensures the stability and accuracy of the transport trolley 1 during the loading and unloading process.

[0043] The cleaning limit 11 includes an H-shaped bracket 18 and an adjustable bolt 17 located at the head of the bracket. Similarly, the adjustable bolt 17 can be rotated to adjust its extension length, thereby limiting the axial movement of the transport trolley 1 in the cleaning station. This limiting method ensures the precise positioning of the transport trolley 1 during the cleaning process, thus guaranteeing the precise alignment of the upper cleaning nozzle 20 and the lower cleaning nozzle 21 with the crankshaft oil passage hole 22.

[0044] In this embodiment, both the loading / unloading limit 10 and the cleaning limit 11 adopt a parallel double adjustable bolt design. This design reduces the deformation and displacement of the limit structure under stress, further ensuring the stability and safety of the structure.

[0045] The cleaning system consists of a cleaning pipeline 19, an upper cleaning nozzle 20, and a lower cleaning nozzle 21. The cleaning pipeline 19 is installed near the crankshaft to be tested, while the upper and lower cleaning nozzles 20 and 21 are installed on the cleaning pipeline 21. The distribution of the upper and lower cleaning nozzles 20 and 21 is aligned with the direction of the crankshaft oil passage holes 22, ensuring that the cleaning fluid can be accurately sprayed into the crankshaft oil passage holes 22, thereby achieving efficient cleaning of the crankshaft.

[0046] In one specific implementation, firstly, the crankshaft is precisely placed vertically onto the transport trolley at the loading / unloading station of the cleaning machine using a robotic arm. This step ensures the correct positioning and initial fixation of the crankshaft before the cleaning process begins.

[0047] Next, the cylinder in the device is activated, and its piston rod moves to the right, thereby actuating the clamping block connected to it. The function of the clamping block is to securely lock the crankshaft onto the transport trolley through its precise mechanical structure, preventing displacement or detachment during subsequent movement and cleaning.

[0048] Subsequently, the transport trolley, carrying the fixed crankshaft, moves to the left along a pre-set track until it enters the internal cleaning station of the cleaning machine. During this process, the axial limiting system installed at the cleaning station plays a crucial role. It guides the transport trolley to precisely stop at the limiting point according to preset coordinates, ensuring that the trolley and its crankshaft accurately stop above / below the cleaning nozzle, thereby achieving precise alignment between the cleaning nozzle and the crankshaft oil passage hole.

[0049] After the cleaning process is completed, the transport trolley starts again, carrying the cleaned crankshaft and moving to the right, returning to the loading / unloading station. At the loading / unloading station, the transport trolley is precisely stopped at the predetermined initial position by another set of limit systems. At this time, the cylinder is activated again, but its piston rod moves to the left, and the clamp lock releases its lock on the crankshaft.

[0050] Finally, the robotic arm intervened again, descending vertically from above to accurately grasp the cleaned and unlocked crankshaft, completing the grasping action without any interference. This concludes the entire cleaning process.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A limited position crankshaft cleaning device comprising a robot (2), characterized in that, It also includes transportation system, support system, limiting system and cleaning system; In the transportation system, the top of the transport trolley (1) is fixedly connected with the bottom plate (3); In the support system, the support frame (5) is welded on the bottom plate (3), and the two ends of the support frame (5) are respectively provided with a crankshaft four-main-shaft V-shaped support (7) and a crankshaft one-main-shaft V-shaped support (8). The limiting system includes a cylinder limiting (9), an up / down feeding limiting (10) and a cleaning limiting (11), the up / down feeding limiting (10) is used for limiting the transport trolley (1) during up / down feeding, and the cleaning limiting (11) is used for limiting the transport trolley (1) during cleaning. In the cylinder limiting (9), the outer end of the piston rod (14) in the cylinder (13) is connected with a clamp locking block (15), the clamp locking block (15) is driven by the piston rod (14) to clamp the crankshaft (4) to the side wall of the support frame (5). In the up / down feeding limiting (10), the end of the up / down feeding limiting support (16) is provided with an up / down feeding adjustable bolt (17); in the cleaning limiting (11), the end of the H-shaped support (18) is provided with a cleaning adjustable bolt (17a). The cleaning system includes a cleaning upper nozzle (20) and a cleaning lower nozzle (21) installed on a cleaning pipeline (19).

2. The position-limiting type crankshaft cleaning device according to claim 1, characterized in that: The cleaning upper nozzle (20) is consistent with the direction of the upper crankshaft oil passage hole (22), and the cleaning lower nozzle (21) is consistent with the direction of the lower crankshaft oil passage hole (22).

3. The position-limiting type crankshaft cleaning device according to claim 1, characterized in that: One end of the support frame (5) is also provided with a crankshaft angular positioning (6).

4. The limited travel crankshaft cleaning device of claim 1, wherein: The mechanical hand (2) is installed above the support frame (5) and is used for grabbing or placing the crankshaft (4) from the transport trolley (1) before and after cleaning.

5. The position-limiting type crankshaft cleaning device according to claim 1, characterized in that: In the cylinder limiting (9), a buffer mechanism is arranged between the piston rod (14) and the clamp locking block (15) to reduce the impact when the clamp locking block (15) is opened and closed.

6. The check ball crankshaft cleaning device of claim 1, wherein: In the up / down feeding limiting (10), at least two up / down feeding adjustable bolts (17) are arranged; in the cleaning limiting (11), at least two cleaning adjustable bolts (17a) are arranged.

7. The position-limiting type crankshaft cleaning device according to claim 1, characterized in that: The cleaning adjustable bolt (17a) adjusts the length of the H-shaped support (18) by manual mode, which is used for cleaning crankshafts of different sizes.

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